At Open Beta, we will have a range of different microtransactions for sale, including many of the following:
Public stash tabs (viewable to other players for trade purposes)
Cosmetic pets
Alternate skill effects
Special animations (for example, taunts or PvP victory animations)
Special paid leagues (with custom game rules)
Guild storage
Alternate item skins and visual effects
Special cosmetic item properties such as “extra gore”
Item dyes